Solutions using Wind to generate Electricity by converting energy to voltage. This is done with windmills for mechanical power, whereas wind pumps are used for pumping agricultural and storm water or even drainage. The mechanical energy converted to electricity, from the machine is called a wind generator, wind turbine, wind power unit (WPU), wind energy converter (WEC), or aero generator. Wind power emits no air pollution, unlike fossil fuel power sources, consuming no fuel. The energy consumed to manufacture and transport the materials used to build a wind power plant is equal to the new energy produced by the plant within a few months of operation.